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Finding the Fourth Proportional to 522.86, 784.28 and 157.62

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Solution

The fourth proportional to 522.86, 784.28 and 157.62 is: 236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.86 : 784.28 = 157.62 : x
  2. Step 2: Convert to fraction form
    522.86/784.28 = 157.62/x
  3. Step 3: Cross multiply
    522.86x = 784.28 × 157.62
  4. Step 4: Simplify right side
    522.86x = 123,621.55
  5. Step 5: Solve for x
    x = 123,621.55/522.86
  6. Step 6: Final answer
    x = 236.44

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.